Colorado Arts & Sciences Magazine » Ancient human ...In contrast, virtually all other ancient human ancestors tested from Africa — including Paranthropus boisei, dubbed “Nutcracker Man” because of its massive jaws and teeth — focused more on grasses and sedges, said CU-Boulder doctoral student Paul Sandberg, a co-author on the new study. The A. sediba diet ... “It is an important finding, because diet is one of the fundamental aspects of an animal, one that drives its behavior and ecological niche. As environments ...http://artsandsciences.colorado.edu/magazine/